These Apple Cinnamon Jumbo Muffins are soft, moist, and filled with warm homemade flavor in every bite. Made with sweet sourdough starter, chunks of fresh apple, and a cozy blend of cinnamon and brown sugar, these bakery-style jumbo muffins bake up with tender crumb and a lightly crisp, cinnamon-sugar top. The natural sweetness of apples pairs perfectly with the richness of the starter, creating a muffin that’s comforting, hearty, and perfect for breakfast or an afternoon treat. Each bite delivers the taste of old-fashioned home baking—simple ingredients, big flavor, and the warmth of sharing.
